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ua star hvacr study guide
ua star hvacr study guide

GARAGE UNIT HEATER Instruction Manual
GARAGE UNIT HEATER Instruction Manual

AE-1374, ZR16 to ZR54K5E R-22 and R
AE-1374, ZR16 to ZR54K5E R-22 and R

... such as loss of charge, the compressor will be protected for some time while it trips the protector. However, as refrigerant leaks out, the mass flow and the amperage draw are reduced and the scrolls will start to overheat. A low pressure control is recommended for loss of charge protection for the ...
MODEL NGN-2 - Optec, Inc.
MODEL NGN-2 - Optec, Inc.

300B Temperature Controller Manual
300B Temperature Controller Manual

TraceNet ECM Operating Guide
TraceNet ECM Operating Guide

technical catalogue
technical catalogue

... Building Management Controls and Peripherals as well as our range of Industrial Electrical Controls and Panel & Cable Accessories including AC Contactors, thermal overloads, miniature circuit breakers relays, and a range of accessories for installation. The price list attached is correct at the time ...
Thermal Handbook - Maxim Integrated
Thermal Handbook - Maxim Integrated

templine® – electrically heated hoses with system options
templine® – electrically heated hoses with system options

2100-620
2100-620

CM24_Quench_Protection_v8
CM24_Quench_Protection_v8

... (LARP prototype quadrupoles for MQXF) ...
COMMERCIAL ELECTRIC WATER HEATERS
COMMERCIAL ELECTRIC WATER HEATERS

commercial electric Water HeaterS
commercial electric Water HeaterS

... Read the start up procedures in the Instruction Manual that came with the water heater. 2 Be sure to turn off power and use a lock out device at the branch circuit power supply disconnect switch or breaker when servicing the electrical system of the water heater. Never touch electrical components wi ...
Thermal Sensors Product Range Guide
Thermal Sensors Product Range Guide

Installation Instructions
Installation Instructions

chapter 2
chapter 2

Owner`s/Operator`s Manual
Owner`s/Operator`s Manual

National Semiconductor Temperature Sensor Handbook
National Semiconductor Temperature Sensor Handbook

Energy Systems Engineering Technology
Energy Systems Engineering Technology

MAX6691 Four-Channel Thermistor Temperature-to-Pulse- Width Converter General Description
MAX6691 Four-Channel Thermistor Temperature-to-Pulse- Width Converter General Description

Domestic_Defrost
Domestic_Defrost

Application notes
Application notes

... winding temperature. In this case, the PTC thermistor is wound directly into the winding so that direct thermal contact is produced. EPCOS offers special types that conform to DIN 44081 and DIN 44082 and that can be designed in with Siemens tripping units. The abrupt increase in the resistance of th ...
Raychem Industrial Heat-Tracing Installation
Raychem Industrial Heat-Tracing Installation

InstallatIon and maIntenance manual for self-regulatIng and power-lImItIng heatIng cable systems Industrial Heat-Tracing
InstallatIon and maIntenance manual for self-regulatIng and power-lImItIng heatIng cable systems Industrial Heat-Tracing

Infrared Oven Components - CCI Thermal Technologies Inc.
Infrared Oven Components - CCI Thermal Technologies Inc.

1 2 3 4 5 ... 13 >

Thermostat



A thermostat is a component of a HVAC control system which senses the temperature of a system so that the system's temperature is maintained near a desired setpoint. The thermostat does this by switching heating or cooling devices on or off, or regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature.A thermostat may be a control unit for a heating or cooling system or a component part of or air conditioner. Thermostats can be constructed in many ways and may use a variety of sensors to measure the temperature. The output of the sensor then controls the heating or cooling apparatus. A thermostat may switch on and off at temperatures either side of the setpoint. This prevents equipment damage from frequent switching. Thermostats are also used in many household appliances. A thermostat is an instance of a ""bang-bang controller"" as the heating or cooling system output is not proportional to the difference between actual temperature and the set temperature; the equipment runs at full capacity until the set temperature is reached, then shuts off. Increasing the difference between the thermostat setting and the desired temperature therefore does not shorten the time to achieve the desired temperature.The term is derived from the Greek words θερμός thermos, ""comfortable"" and στατός statos, ""climate controlled"".
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